US7681634B2 - Apparatus for wiping the interior of pipes - Google Patents
Apparatus for wiping the interior of pipes Download PDFInfo
- Publication number
- US7681634B2 US7681634B2 US11/632,578 US63257805A US7681634B2 US 7681634 B2 US7681634 B2 US 7681634B2 US 63257805 A US63257805 A US 63257805A US 7681634 B2 US7681634 B2 US 7681634B2
- Authority
- US
- United States
- Prior art keywords
- wiper device
- drill string
- drill pipe
- drill
- drilling mud
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
Links
- 238000005553 drilling Methods 0.000 claims abstract description 27
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 description 16
- 230000006378 damage Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/006—Accessories for drilling pipes, e.g. cleaners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/0436—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B12/00—Accessories for drilling tools
- E21B12/06—Mechanical cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/08—Wipers; Oil savers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/02—Scrapers specially adapted therefor
Definitions
- the present invention relates to an apparatus which is provided for cleaning a drill string of drilling mud during tripping.
- the apparatus is provided with a mass and a volume such that it is able to float on a surface of the drilling mud in the drill string during the tripping operation.
- the apparatus comprises a wiper device.
- the drill string consists of drill pipes that are screwed together, and when the drill string is pulled out, it is usual to withdraw lengths of three connected drill pipes at a time, which are then set aside on a pipe rack. These, as a rule three, pipes are called a stand. The pulling out (tripping) continues by pulling out stand after stand until the whole drill string has been pulled out.
- a further object of the invention is to reduce problems in connection with the changeover from one mud type to another (particularly from oil-base drilling mud to water-base drilling mud). Another object is to reduce the time spent flushing pipes. Furthermore, the invention also allows for the addition of an anti-corrosive agent inside the drill pipe.
- U.S. Pat. No. 4,287,948 describes a wiper device for use in a drill string.
- the wiper device floats in the drilling fluid, and during tripping a circumferential edge of the device wipes the interior wall of the drill string clean of liquid.
- an apparatus for cleaning a drill string of drilling mud during tripping, the apparatus being provided with a mass and a volume such that it floats on a surface of the drilling mud in the drill string.
- the apparatus comprises a wiper device.
- the apparatus according to the invention is characterised in that the wiper device is bellows-shaped and that a weight is connected to the wiper device.
- One advantage of the apparatus according to the invention is that it has a simple design. Another advantage is that the apparatus projects only slightly above the fluid surface. This is advantageous since it reduces the danger of damage to the apparatus during the disconnection of drill pipes.
- FIG. 1 is a longitudinal section of an embodiment of the apparatus according to the invention.
- FIG. 2 is a partial longitudinal section of a top end part of the apparatus in FIG. 1 , showing the end part in more detail.
- FIG. 3 is a longitudinal section of the top end part when the apparatus has been placed in a drill string.
- FIG. 4 is a longitudinal section of the apparatus in a drill string.
- FIG. 5 is a longitudinal section of the device in FIG. 4 when the drill string has moved a little way upwards.
- FIG. 7 is a perspective view of a second embodiment of the apparatus.
- FIG. 9 is a side view of the same apparatus as in FIG. 7 placed in a drill string.
- FIG. 10 is a side view of the same apparatus as in FIG. 7 as the apparatus is being pulled out of the drill string.
- FIG. 11 is a view of another embodiment of the apparatus.
- FIG. 12 is an enlarged view of the upper part of the apparatus shown in FIG. 11 .
- the apparatus 1 comprises a closed body 2 which can advantageously be tubular.
- the body 2 may, for example, have an external diameter of about 2 ⁇ 3 of the internal diameter of the drill string.
- the body 2 can be made of metal, a metal alloy or a composite material. In an advantageous embodiment, the body 2 can be made of aluminium.
- the apparatus 1 comprises centralisers 3 which are mounted at the top and bottom of the closed body 2 .
- the centralisers 3 may optionally only be mounted at the bottom.
- the centralisers 3 may comprise bands 4 that are secured to the closed body 2 by an annular fastener 5 at the top. At the bottom, the bands 4 may be slidably fastened by a second annular fastener 6 .
- the centralisers 3 can alter their external diameter when the internal diameter of the drill string changes.
- the centralisers 3 may also have other shapes; for example, they may be in the form of blocks.
- the bands 4 may, for example, be made of metal or of a plastics material.
- the upper part of the wiper device 8 is mounted to a shaft 9 that is able to slide axially in the top of the pipe.
- the upper part of the shaft can have a weight 10 mounted thereon which may be ball-shaped.
- the bellows shape means that when the gravitational force of the shaft and/or the weight 10 acts on the wiper device 8 , the shape of the wiper device 8 will alter in that it is compressed in a vertical direction and at the same time expands sideways in a horizontal direction.
- the apparatus 1 is placed inside a drill string 11 having an internal surface 12 when the pulling out (breaking) of the drill string is to be carried out. This is shown in FIG. 3 .
- the drill string 11 contains mud/drilling fluid with a drilling fluid surface 13 .
- the apparatus 1 is provided with a mass and a volume such that the device will remain floating on the drilling fluid surface 13 .
- the weight of the apparatus 1 ensures that it falls down to the fluid surface 13 and places the circumferential edge 14 of the wiper device 8 about 10-15 cm above the fluid surface 13 .
- the weight 10 in the top of the shaft 9 forces the edge 14 of the wiper device 8 against the interior surface 12 of the drill string.
- the weight 10 is sufficiently heavy to ensure that a certain wiping resistance can be exerted from the circumferential edge 14 against the interior surface 12 of the pipe wall, and at the same time is not so heavy that the apparatus 1 gets stuck in junctions, edges or other obstacles inside the drill string. As the drill string 11 is raised, the apparatus 1 will lie constantly on the fluid surface 13 and scrape off the drilling mud clinging to the interior surface 12 of the drill string 11 .
- One advantageous embodiment of the apparatus 1 may typically have a length of about 1 meter.
- a typical total weight of the apparatus 1 may be 5 kg.
- FIG. 4 is a longitudinal section of the apparatus 1 in a drill string 11 .
- the apparatus 1 Since the apparatus 1 will always be on the top of the fluid surface 13 , it will normally be simple to remove the apparatus 1 when pulling out the drill string 11 . In general, the fluid surface 13 will be slightly above the drill floor when the tripping operation starts. The fluid surface 13 will drop as the drill string is pulled out.
- retrieval equipment 15 for example, fishing gear, can be used to retrieve the apparatus 1 . This is shown in FIGS. 6 a - 6 d.
- This embodiment comprises a wiper device 8 ′ which is split into two or more wiper sections 16 ′.
- One or more wiper sections 16 ′ are arranged so that it/they are axially offset from each other.
- An apparatus may comprises a wiper device 8 ′ comprising two wiper sections 16 ′, each wiper section 16 ′ covering a part of a circular circumference, preferably 180° or more, and which are axially offset from each other. In an advantageous embodiment each wiper section covers about 200°.
- FIG. 7 show a further example where the wiper device 8 ′ is split into four wiper sections 16 ′. Two opposing wiper sections 16 ′ are axially and radially offset from the two other wiper sections 16 ′.
- FIG. 8 shows a split view of the apparatus according to FIG. 7 .
- FIG. 9 is a side view of the same apparatus when it has been placed inside a drill string.
- FIG. 10 shows the apparatus when it is being pulled out from the drill string with a force F.
- one embodiment of the apparatus may comprise one or more channels past or through the wiper device 8 to permit passage of drilling mud and/or ensure that the apparatus floats in the fluid surface when drilling mud is added.
- FIG. 11 shows a further example of a wiper device 8 with drainage openings 17 that lead into a central bore or channel 18 axially through the device to allow drilling mud to pass downwards.
- the wiper device 8 may also comprise air holes or vents 19 as shown in FIG. 12 .
- the weight 10 may have other shapes than the ball shape shown in FIGS. 1-10 . It may, for example, be made in the form of a disc-shaped weight 10 for compression of the wiper device 8 , 8 ′. Optionally, the weight 10 may be incorporated into the upper part (i.e., the part above the edge 14 ) of the wiper device 8 , 8 ′ in order to cause the edge 14 to be pressed against the interior surface 12 .
- One example of an internally arranged weight 10 is shown in FIG. 11 .
- the weight 10 may, for example, have a recess 20 (fish neck) as shown in FIG. 11 for attaching the fishing gear for retrieval of the apparatus.
- the apparatus 1 may also have other types of devices for attaching fishing gear for retrieving the apparatus.
- Drilling mud has varying mud weight. Consequently, a favourable embodiment of the apparatus has replaceable weights/weight elements. An example of this is shown in FIG. 11 where the weight element 21 can be unscrewed and replaced.
- sensors and other measuring devices may be attached to the apparatus 1 .
- Other examples of additional applications are the identification of wash-out, i.e., that there is a leakage when the pressure inside the drill pipe increases.
- measurement of corrosion inside the drill pipe can be made when the internal diameter of the drill string changes.
- the centralisers 3 may also have
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Prevention Of Fouling (AREA)
- Cleaning In General (AREA)
Abstract
Description
Claims (5)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20042986 | 2004-07-15 | ||
NO20042986A NO321918B1 (en) | 2001-12-19 | 2004-07-15 | Device for scraping the inside of the rudder |
PCT/NO2005/000263 WO2006006872A1 (en) | 2004-07-15 | 2005-07-15 | Apparatus for wiping the interior of pipes |
Publications (2)
Publication Number | Publication Date |
---|---|
US20070277970A1 US20070277970A1 (en) | 2007-12-06 |
US7681634B2 true US7681634B2 (en) | 2010-03-23 |
Family
ID=35784152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/632,578 Expired - Fee Related US7681634B2 (en) | 2004-07-15 | 2005-07-15 | Apparatus for wiping the interior of pipes |
Country Status (4)
Country | Link |
---|---|
US (1) | US7681634B2 (en) |
EA (1) | EA009708B1 (en) |
GB (1) | GB2434600C (en) |
WO (1) | WO2006006872A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130174363A1 (en) * | 2012-01-06 | 2013-07-11 | Vadxx Energy LLC | Anti-fouling apparatus for cleaning deposits in pipes and pipe joints |
US10421911B2 (en) | 2012-02-15 | 2019-09-24 | Vadxx Energy LLC | Dual stage, zone-delineated pyrolysis apparatus |
US10731081B2 (en) | 2012-02-09 | 2020-08-04 | Vadxx Energy LLC | Zone-delineated pyrolysis apparatus for conversion of polymer waste |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO330743B1 (en) * | 2009-06-03 | 2011-06-27 | 2K Tools As | Landing sub for scrapers |
WO2015160261A1 (en) | 2014-04-14 | 2015-10-22 | 2K Tools As | Wiper apparatus for pipes |
CN112282700B (en) * | 2020-12-10 | 2022-04-12 | 山东辛丁技术有限公司 | Mud scraper |
US11939860B2 (en) * | 2021-02-01 | 2024-03-26 | Saudi Arabian Oil Company | Orienting a downhole tool in a wellbore |
US11939833B2 (en) * | 2021-09-16 | 2024-03-26 | Halliburton Energy Services, Inc. | Retrievable wiper plug with fishing neck |
US11913329B1 (en) | 2022-09-21 | 2024-02-27 | Saudi Arabian Oil Company | Untethered logging devices and related methods of logging a wellbore |
Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US475506A (en) * | 1892-05-24 | Elastic scraper for flue-cleaners | ||
US1732277A (en) * | 1928-01-09 | 1929-10-22 | Owens John Henry | Pipe cleaner |
US2149824A (en) * | 1934-07-23 | 1939-03-07 | R W Fair | Tubing scraper for oil wells |
US2237863A (en) * | 1940-02-23 | 1941-04-08 | John C Donaldson | Combined guide and scraper |
US2257080A (en) * | 1939-10-10 | 1941-09-23 | Texas Co | Drill pipe cleaner |
US2460481A (en) * | 1947-05-27 | 1949-02-01 | Charles P Mckinney | Drill pipe cleaner |
US2740480A (en) * | 1954-04-28 | 1956-04-03 | Howard J Cox | Pipe wiper |
US4034807A (en) | 1975-08-12 | 1977-07-12 | Edgar N. Prince | Inside pipe wiper |
US4221264A (en) | 1977-11-07 | 1980-09-09 | Archie K. Haggard | Tubular interior wiper |
US4287948A (en) | 1979-03-30 | 1981-09-08 | Haggard I. D. Wiper, Inc. | Tubular member interior wiper |
US4923011A (en) * | 1989-08-21 | 1990-05-08 | Uvon Skipper | Drill stem mud wiping apparatus |
US5012866A (en) * | 1989-08-21 | 1991-05-07 | Uvon Skipper | Drill stem mud wiping apparatus |
US5732774A (en) * | 1995-12-15 | 1998-03-31 | Haggard; Archie K. | Drill wiper assembly |
US5836386A (en) * | 1996-08-13 | 1998-11-17 | Haggard; Archie | Wiping element for a drill pipe ID wiping device |
US6371207B1 (en) * | 1999-06-10 | 2002-04-16 | M-I L.L.C. | Method and apparatus for displacing drilling fluids with completion and workover fluids, and for cleaning tubular members |
US20020144812A1 (en) | 2001-04-10 | 2002-10-10 | Smith Sidney K. | Fluid filled drill pipe plug |
US20040065446A1 (en) * | 2002-10-08 | 2004-04-08 | Khai Tran | Expander tool for downhole use |
-
2005
- 2005-07-15 EA EA200700267A patent/EA009708B1/en not_active IP Right Cessation
- 2005-07-15 GB GB0700739A patent/GB2434600C/en not_active Expired - Fee Related
- 2005-07-15 WO PCT/NO2005/000263 patent/WO2006006872A1/en active Application Filing
- 2005-07-15 US US11/632,578 patent/US7681634B2/en not_active Expired - Fee Related
Patent Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US475506A (en) * | 1892-05-24 | Elastic scraper for flue-cleaners | ||
US1732277A (en) * | 1928-01-09 | 1929-10-22 | Owens John Henry | Pipe cleaner |
US2149824A (en) * | 1934-07-23 | 1939-03-07 | R W Fair | Tubing scraper for oil wells |
US2257080A (en) * | 1939-10-10 | 1941-09-23 | Texas Co | Drill pipe cleaner |
US2237863A (en) * | 1940-02-23 | 1941-04-08 | John C Donaldson | Combined guide and scraper |
US2460481A (en) * | 1947-05-27 | 1949-02-01 | Charles P Mckinney | Drill pipe cleaner |
US2740480A (en) * | 1954-04-28 | 1956-04-03 | Howard J Cox | Pipe wiper |
US4034807A (en) | 1975-08-12 | 1977-07-12 | Edgar N. Prince | Inside pipe wiper |
US4221264A (en) | 1977-11-07 | 1980-09-09 | Archie K. Haggard | Tubular interior wiper |
US4287948A (en) | 1979-03-30 | 1981-09-08 | Haggard I. D. Wiper, Inc. | Tubular member interior wiper |
US4923011A (en) * | 1989-08-21 | 1990-05-08 | Uvon Skipper | Drill stem mud wiping apparatus |
US5012866A (en) * | 1989-08-21 | 1991-05-07 | Uvon Skipper | Drill stem mud wiping apparatus |
US5732774A (en) * | 1995-12-15 | 1998-03-31 | Haggard; Archie K. | Drill wiper assembly |
US5836386A (en) * | 1996-08-13 | 1998-11-17 | Haggard; Archie | Wiping element for a drill pipe ID wiping device |
US6371207B1 (en) * | 1999-06-10 | 2002-04-16 | M-I L.L.C. | Method and apparatus for displacing drilling fluids with completion and workover fluids, and for cleaning tubular members |
US20020144812A1 (en) | 2001-04-10 | 2002-10-10 | Smith Sidney K. | Fluid filled drill pipe plug |
US20040065446A1 (en) * | 2002-10-08 | 2004-04-08 | Khai Tran | Expander tool for downhole use |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130174363A1 (en) * | 2012-01-06 | 2013-07-11 | Vadxx Energy LLC | Anti-fouling apparatus for cleaning deposits in pipes and pipe joints |
US9222612B2 (en) * | 2012-01-06 | 2015-12-29 | Vadxx Energy LLC | Anti-fouling apparatus for cleaning deposits in pipes and pipe joints |
US10731081B2 (en) | 2012-02-09 | 2020-08-04 | Vadxx Energy LLC | Zone-delineated pyrolysis apparatus for conversion of polymer waste |
US10421911B2 (en) | 2012-02-15 | 2019-09-24 | Vadxx Energy LLC | Dual stage, zone-delineated pyrolysis apparatus |
Also Published As
Publication number | Publication date |
---|---|
GB2434600C (en) | 2010-01-06 |
WO2006006872A1 (en) | 2006-01-19 |
US20070277970A1 (en) | 2007-12-06 |
EA200700267A1 (en) | 2007-06-29 |
GB2434600B (en) | 2009-09-16 |
GB2434600A (en) | 2007-08-01 |
EA009708B1 (en) | 2008-02-28 |
GB0700739D0 (en) | 2007-02-21 |
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